A mechanical rock breaking and continuous mining method suitable for gently inclined stratified ore deposits

Abstract

The application provides a mechanical rock breaking continuous mining method suitable for gently inclined layered ore deposit, relates to the technical field of non-explosive continuous mining of non-coal mines, and comprises the following steps: stope structure arrangement; according to the occurrence characteristics of the ore deposit, a middle section is divided along the ore body tendency, a panel is divided along the ore body strike in the middle section, a block is further divided in the panel, if the thickness of the ore body exceeds the limit mining height of the mining equipment, sublevels are further divided in the block; planning of mining and cutting engineering; the mining and cutting engineering comprises a middle section connecting lane, a panel belt conveyer lane, a panel auxiliary conveyer lane, a middle section air return lane, a rock drilling conveyer lane and a panel chute; mining sequence is made; the mining sequence mainly comprises middle section sublevel interval mining sequence and panel block interval mining sequence; block mining; the block mining comprises microwave irradiation, mechanical cutting rock breaking and ore falling; the method realizes continuous and stable ore drawing in the stope, and the "mining-loading-transporting" procedures do not interfere with each other, and the production effect is smooth.

Description

Technical Field

[0001] This invention belongs to the field of non-explosive continuous mining technology in non-coal mines, and specifically relates to a mechanical rock-breaking continuous mining method applicable to gently inclined layered deposits. Background Technology

[0002] Non-coal mines with gently dipping, layered deposits are among the most difficult types of deposits to mine. Currently, the main methods for mining this type of deposit are blasting and mechanical rock breaking. Blasting mining results in high ore dilution rates, significant disturbance to the roof and surrounding rock, and poor inter-process coordination, hindering the development of mines towards continuous, mechanized, and less-manned operations. Mechanical rock breaking mainly uses equipment such as cantilever tunneling machines or cutting machines to break rock through cutting, rolling, and impact cutting. However, it suffers from the problem of "not being able to break through hard rock and not being able to mine quickly" when facing hard rock. To address this, in recent years, the industry has proposed a microwave-assisted mechanical rock breaking method. This method involves irradiating the hard rock at the working face with microwaves before mechanical rock breaking to induce high-temperature fracturing and improve the cutability of hard rock. This method avoids the intermittency and high risk of traditional drilling and blasting processes while improving the efficiency of traditional single mechanical tunneling in hard rock.

[0003] However, this method still has problems such as difficulty in synchronizing microwave irradiation and mechanical cutting on the same working face, resulting in discontinuous ore supply in the mining area and large power loss during transportation; at the same time, the high temperature generated by microwaves puts higher requirements on ventilation of the working face. Summary of the Invention

[0004] To address the challenge of synchronizing microwave irradiation and mechanical cutting and improve the continuity of processes within the stope, a mechanical rock-breaking continuous mining method suitable for gently dipping layered deposits is proposed. This method aims to achieve continuous and stable ore production within the stope, ensuring smooth transitions between the "mining-loading-transporting" processes without interference. Simultaneously, corresponding stope ventilation methods are proposed to provide a good and safe working environment for stope workers and machinery.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mechanical rock-breaking continuous mining method applicable to gently dipping layered deposits includes the following steps:

[0007] Step 1, layout of the mining area; based on the occurrence characteristics of the ore deposit, divide the middle section along the dip of the ore body, divide the panel area along the strike of the ore body within the middle section, and further divide the ore block within the panel area. If the thickness of the ore body exceeds the limit mining height of the mining equipment, the ore block is divided into layers.

[0008] Step 2, plan the mining and cutting works; the mining and cutting works include the intermediate connecting roadway, the panel conveyor belt transport roadway, the panel auxiliary transport roadway, the intermediate return air roadway, the rock drilling transport roadway, and the panel chute;

[0009] Step 3, developing the stoping sequence; the stoping sequence mainly includes the stoping sequence between the middle section layers and the stoping sequence between the ore blocks in the panel;

[0010] Step 4, stoping the ore blocks; the stoping of the ore blocks includes microwave irradiation, mechanical cutting and rock breaking, and ore drawing;

[0011] Step 5, ore transportation; the ore transportation includes the transportation in the stope, the ore transportation in the panel, and the ore transportation in the middle section, wherein the cut ore in the stope is transferred to the rehandler behind the equipment by the loading mechanism of the heading machine, and then is transported out of the stope by the scraper conveyor arranged in the drilling and transportation roadway; the ore in the panel is transferred to the belt conveyor in the panel by the scraper conveyor, and then is transported to the belt conveyor in the middle section connecting roadway by the belt conveyor, so as to realize the continuous and stable transportation in the whole process of the stope-panel-middle section;

[0012] Step 6, stope ventilation; the stope ventilation is specifically that the drilling and transportation roadway is used as the ventilation inlet roadway of the whole stope; the fresh air flow path is the panel connecting roadway→the panel main transportation roadway→the drilling and transportation roadway→the mining face; the dirty air flow path is the mining face→the middle section return air roadway, and the temperature of the mining face is ensured to be below 26° by using ventilation;

[0013] Step 7, filling; the filling is specifically that after the stope is completely mined, the whole tailings cemented filling body is used for filling, the filling height is the layer height, generally 4-6 m, wherein the lower part of 4 m uses the low strength filling ratio, and the upper part of 1-2 m uses the high strength filling ratio;

[0014] Step 8, pillar recovery; the pillar recovery refers to that after the ore bodies on both sides of the panel main transportation roadway arranged in the middle section top and bottom pillars are completely mined and filled, the transportation roadway in the pillar is used as the cutting roadway for retreat mining.

[0015] Preferably, the step 1 further includes the following steps:

[0016] Step 11, the inclined length of the middle section is 80-120 m, and the top and bottom pillars with a width of 15-20 m are left between the middle sections;

[0017] Step 12, the panel length is determined according to the reasonable transportation distance of the panel continuous conveying equipment, the panel length is 400-600 m, and the panel pillar with a width of 15 m is left between the panels;

[0018] Step 13, the pseudo-inclined ore blocks are arranged in the panel at a certain angle along the ore body trend, so as to ensure that the pseudo-inclined angle does not exceed the climbing ability of the mining equipment, the width of the ore block is determined according to the stability of the surrounding rock, and is generally 15-20 m, and the height of the ore block is the thickness of the ore body, when the thickness of the ore body is greater than the maximum mining height of the mining equipment, the layer is further divided, and the layer height is generally 4-6 m.

[0019] Preferably, the step 2 further comprises the following steps:

[0020] Step 21, the middle section connecting lane is divided into intravascular middle section connecting lane and extravascular middle section connecting lane, wherein the extravascular middle section connecting lane is arranged in the two wings of the ore body as a channel for the transfer of mechanical equipment between the adjacent layers of the middle section; the intravascular middle section connecting lane is arranged in the top and bottom pillar of the middle section as a personnel, material and ore transportation lane and a ventilation lane between the middle sections;

[0021] Step 22, the panel belt transportation lane and the panel auxiliary transportation lane are arranged in the top and bottom pillar of the middle section along the strike of the ore body, and the distance between the two is 8-10 m, and the panel belt transportation lane and the panel auxiliary transportation lane of the adjacent middle section share a set of panel belt transportation lane and panel auxiliary transportation lane;

[0022] Step 23, the middle section return air lane is arranged in the other side of the top and bottom pillar of the panel along the strike of the ore body;

[0023] Step 24, the drilling and transportation lane is arranged on the central axis of the ore block and connects the panel belt transportation lane and the return air lane;

[0024] Step 25, when the thickness of the ore body exceeds the maximum mining height of the mining equipment, and the upper layer of the ore body is mined, a panel shaft is arranged in the top and bottom pillar of the middle section at one end of the panel belt transportation lane, so that the ore of the upper layer is dropped to the belt conveyor of the intravascular middle section connecting lane.

[0025] Preferably, the mining sequence between the ore blocks in the panel comprises: unidirectional mining from the air inlet side to the air return side along the strike of the ore body, and one ore block is mined every other ore block, that is, one step 1 ore room is mined first, and then a step 2 ore pillar is mined, and finally the top and bottom pillar of the middle section is mined after the mining of the entire panel of the ore block is completed.

[0026] Preferably, the mining sequence between the layers in the middle section comprises: when there are multiple layers in one middle section during the mining of the medium-thick ore body, the alternating mining between the middle sections and the layers is adopted to ensure that the stope filling and the mining in each layer do not interfere with each other.

[0027] Preferably, the mining of the ore block is specifically: the air return side end of the drilling and transportation lane is fully undercut along the short axis of the ore block, and two mining equipments are arranged on both sides of the drilling and transportation lane to cooperatively retreat towards the air inlet end, so that the mining equipment has more than two free surfaces during mining, thereby improving the mining efficiency.

[0028] Preferably, the microwave rock breaking and ore dropping is specifically: the microwave is used to irradiate the hard rock of the mining face to cause high temperature and fragmentation, and then the mining equipment mines the irradiated hard rock.

[0029] Preferably, the mining equipment adopts a boom-type roadheader, and is not limited by the type of pick and the way of tunneling.

[0030] Beneficial effects: the mining method has the following advantages:

[0031] a) two mining equipments are arranged in the stope to cooperatively mine, which can form complementarity on the stope working face ore supply, so as to solve the problem that microwave irradiation and mechanical cutting are difficult to be synchronized and further cause intermittent ore supply, and realize the effect of stable ore drawing in the whole cycle of stope mining;

[0032] b) the drilling and transportation roadway is used as the connecting channel of the working face and the main transportation roadway of the panel, which avoids exposing personnel and equipment directly under the large area of goaf roof, and improves the operation safety of underground personnel and equipment;

[0033] c) the drilling and transportation roadway is used as the air inlet roadway of the stope, and the net wind first reaches the stope working face, which ensures a good working environment and is conducive to reducing the temperature generated by the microwave irradiation working face;

[0034] d) compared with the traditional drill and blast room pillar method, the mining method has smaller mining and cutting engineering quantity, higher mechanization degree and stronger safety;

[0035] e) when there are multiple sub-layers in a middle section, the alternating stoping is adopted between the middle sections and the sub-layers, which ensures that the stope filling and stoping in each sub-layer do not interfere with each other, and it is easier to form large-scale mining. BRIEF DESCRIPTION OF DRAWINGS

[0036] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application and explanations thereof serve to explain the application, and do not constitute improper limitations on the application. Among them:

[0037] Figure 1 is the tendency plan view of the stope structure of the gently inclined stratified ore deposit in the specific embodiment provided by the present application;

[0038] Figure 2 is the vertical section view of the stope structure of the gently inclined stratified ore deposit in the specific embodiment provided by the present application.

[0039] In the figure: 1, middle section return air roadway; 2, intrapulse middle section connecting roadway; 3, one-step filling ore block; 4, two-step filling ore block; 5, panel belt transportation roadway; 6, panel auxiliary transportation roadway; 7, drilling and transportation roadway; 8, middle section top and bottom pillar; 9, extrapulse middle section connecting roadway; 10, panel chute. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0041] In the description of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and does not require the present application to be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "connected", "connected" used in the present application should be understood broadly, for example, it can be fixed connection, or detachable connection; it can be directly connected, or indirectly connected through intermediate components, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0042] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0043] Referring to Figure 1 and Figure 2 According to one embodiment of the present application, a mechanical rock breaking continuous mining method suitable for gently inclined stratified ore deposit includes stope structure arrangement; according to the occurrence characteristics of the ore deposit, the middle section is divided along the ore body tendency, the panel is divided along the ore body strike in the middle section, the ore block is divided in the panel, and if the thickness of the ore body exceeds the limit mining height of the mining equipment, the sublevel is divided in the ore block; mining and cutting engineering is planned; the mining and cutting engineering includes middle section connecting roadway, panel belt conveyor roadway 5, panel auxiliary transportation roadway 6, middle section return airway 1, rock drilling transportation roadway 7 and panel chute 10; the stoping sequence is formulated; the stoping sequence mainly includes middle section sublevel interlayer stoping sequence and panel interblock stoping sequence; the ore block is mined; the ore block mining includes microwave irradiation, mechanical cutting rock breaking and ore falling. Mining includes microwave rock breaking and ore falling, ore transportation, ventilation, filling process and ore pillar mining steps.

[0044] Ore transportation; the ore transportation includes in-stope transportation, panel ore transportation and middle section ore transportation, wherein the cut ore in the stope is transferred to the reclaimer behind the equipment by the loading mechanism of the roadheader, and then is transported out of the stope by the scraper conveyor arranged in the rock drilling transportation roadway 7; the ore in the panel is transferred to the belt conveyor in the panel by the scraper conveyor, and then is transported to the belt conveyor in the middle section connecting roadway by the belt conveyor, so as to realize the continuous and stable transportation of the whole process of stope-panel-middle section.

[0045] Stope ventilation; the stope ventilation is specifically that the rock drilling transportation roadway 7 is used as the ventilation air inlet roadway of the whole stope; the fresh air flow path is panel connecting roadway→panel main transportation roadway→rock drilling transportation roadway 7→mining face; the contaminated air flow path is mining face→middle section return airway 1, and the ventilation is used to ensure that the temperature of the mining working face is below 26°.

[0046] Filling; the filling is specifically: after the end of the entire mining of the stope, using full tailings cemented filling body to fill, the filling height is the layering height, generally 4-6m, wherein the lower part 4m uses low strength filling proportioning, the upper part 1-2m uses high strength filling proportioning.

[0047] Pillar recovery; the pillar recovery refers to that after the mining of the ore body arranged in the middle section top and bottom pillar 8 and filling, the transportation roadway in the pillar is used as a cutting roadway to retreat the mining.

[0048] One specific embodiment provided by the present application is as follows:

[0049] 1) Stope structure arrangement

[0050] According to the occurrence characteristics of the deposit, the deposit is divided into middle sections along the inclination, the middle sections are divided into panels along the ore body strike, the panels are divided into blocks, and if the thickness of the ore body exceeds the limit mining height of the mining equipment, the blocks are divided into layers. The middle section oblique length is determined according to 2 times of the economic haulage distance of the stope continuous conveying equipment, generally 80-120m, and 15-20m wide top and bottom pillars are left between the middle sections; the panel length is determined according to the reasonable haulage distance of the panel continuous conveying equipment, and the panel length is 400-600m, and 15m panel pillar is left between the panels. The blocks (rooms, pillars) are arranged in the panels along the ore body strike at an angle of 45° pseudo-inclination, the pseudo-inclined blocks are arranged in the panels along the ore body strike at a certain angle, the pseudo-inclined angle is ensured to be not more than the climbing ability of the mining equipment, the block width is determined according to the stability of the surrounding rock, generally 15-20m, and the block height is the thickness of the ore body, when the thickness of the ore body is greater than the maximum mining height of the mining equipment, the block is further divided into layers, and the layering height is generally 4-6m.

[0051] 2) Mining and cutting engineering

[0052] The main mining and cutting engineering includes: middle section connecting roadway, panel belt conveyor roadway 5, panel auxiliary transportation roadway 6, middle section return airway 1, rock drilling transportation roadway 7 and panel chute 10.

[0053] The middle section connecting roadway is divided into two kinds of intravascular middle section connecting roadway 2 and extravascular middle section connecting roadway 9, wherein the extravascular middle section connecting roadway 9 is arranged in the two wings of the ore body, as the channel for the transfer of mechanical equipment between the layers of adjacent middle sections; the intravascular middle section connecting roadway 2 is arranged in the middle section top and bottom pillar 8, as the personnel, material and ore transportation roadway and ventilation roadway between the middle sections. The panel belt conveyor roadway 5 and the panel auxiliary transportation roadway 6 are arranged in the middle section top and bottom pillar 8 along the ore body strike, and the distance between the two is 8-10m, and the panel belt conveyor roadway 5 and the panel auxiliary transportation roadway 6 of adjacent middle sections share a set. The middle section return airway 1 is arranged in the other side top and bottom pillar of the panel along the ore body strike. The rock drilling transportation roadway 7 is arranged on the middle axis of the block, connecting the panel belt conveyor roadway 5 and the return airway.

[0054] When the thickness of the ore body exceeds the maximum mining height of the mining equipment and the upper layer of the ore body is mined, the ore of the upper layer is rolled into the belt conveyor of the in-pulse contact lane 2 by arranging the panel chute 10 in the middle section top and bottom pillar 8 at one end of the panel belt transportation lane 5.

[0055] All transverse cutting projects use cantilever excavators for excavation, regardless of the type of pick and the excavation method, and the slope does not exceed the maximum climbing ability of the excavator.

[0056] 3) Stoping sequence of three-dimensional stope structure

[0057] The stoping sequence of the three-dimensional stope structure mainly includes the stoping sequence between the middle section layers and the stoping sequence between the ore blocks in the panel.

[0058] Different stoping sequence between the middle section layers: The layers in the middle section are alternately mined, that is, the lower layer of the ore body in the lower middle section panel is mined first, then the lower layer of the ore body in the upper middle section panel is mined, and after the filling body in the first filling area 3 of the lower middle section panel solidifies, the upper layer of the ore body is mined. After the upper layer of the ore body is mined, the second filling area 4 is filled.

[0059] Panel stoping sequence: One-way stoping along the strike of the ore body, simultaneous mining of the access ore blocks on both sides of the panel belt transportation lane 5, mining the ore room first and then the ore pillar, and finally stoping the ore pillar in the panel after the entire panel ore block is mined.

[0060] In-stope stoping sequence: Excavate the preparation roadway along the central axis in the stope, which also serves as the ventilation channel of the stope and the channel for continuous transportation equipment. Two devices are used for coordinated backward excavation during the excavation process.

[0061] 4) Main mining procedures

[0062] ① Microwave rock breaking and ore falling

[0063] First, the hard rock at the working face is irradiated and weakened by microwaves, and then the weakened hard rock is excavated by the excavator. In view of the existence of stone in the ore body, in order to reduce the dilution rate of the ore and the mixing rate of waste rock, the excavated waste rock is removed in situ by means of infrared ore rock identification technology.

[0064] ② Ore transportation

[0065] Ore transportation includes in-stope transportation, panel ore transportation, and middle section ore transportation. The cut ore in the stope is transferred to the reclaimer behind the equipment by the loading mechanism of the excavator, and then transported out of the stope by the scraper conveyor arranged in the drilling transportation lane 7. The ore in the panel is transferred to the belt conveyor in the panel by the scraper conveyor, and then transported to the belt conveyor in the middle section lane by the belt conveyor, realizing continuous and stable transportation in the whole process of stope-panel-middle section.

[0066] ③ Ventilation

[0067] Considering the high temperature and dust environment of the mining face during microwave-assisted mechanical rock breaking, a drilling and transportation roadway 7 is arranged along the central axis of the stope, which also serves as the ventilation roadway of the entire stope. The fresh air flow path is: panel connecting roadway 2 → panel main transportation roadway (panel auxiliary transportation roadway 6) → drilling and transportation roadway 7 → mining face; the dirty air flow path is: mining face → middle section return air roadway 1, and ventilation is used to ensure that the temperature of the mining face is below 26°.

[0068] ④ Filling

[0069] After the stope is fully mined, full tailings cemented filling is used for filling, and the filling height is the layering height, generally 4-6 m, of which the lower 4 m uses low-strength filling ratio, and the upper 1-2 m uses high-strength filling ratio.

[0070] 5) Pillar mining

[0071] The ore block mining includes microwave irradiation, mechanical cutting and rock breaking, and ore falling. The panel pillar or inter-panel pillar is mined according to the stability of the surrounding rock, and is filled in time after mining.

[0072] The back side end of the drilling and transportation roadway 7 is fully undercut along the short axis of the ore block, and two mining equipment are arranged on both sides of the drilling and transportation roadway 7 to cooperate with the retreat mining towards the air inlet end, so as to ensure that the equipment has more than two free surfaces during mining and improve the mining efficiency.

[0073] In summary, the proposed mining method has the following advantages:

[0074] The double-entry mining can complement the ore supply at the stope working face, solve the problem of intermittent ore supply caused by the difficulty in synchronizing microwave irradiation and mechanical cutting, and realize the effect of stable ore mining in the whole cycle of the stope; the ore mining process and the ore falling process do not interfere with each other, and the continuity is strong; the drilling and transportation roadway 7 serves as the connecting channel of the working face and the panel main transportation roadway, avoiding the direct exposure of personnel and equipment under the large area of the stope roof, improving the safety of underground personnel and equipment; the drilling and transportation roadway 7 serves as the air inlet roadway of the stope, and the clean air first reaches the stope working face, ensuring a good working environment and being conducive to reducing the temperature generated by the microwave irradiation of the working face; compared with the traditional drill and blast room pillar method, the mining and cutting engineering quantity of the mining method is smaller, the mechanization degree is higher, and the safety is stronger; when there are multiple layers in a middle section, the middle sections and the layers are alternately mined, ensuring that the stope filling and mining of each layer do not interfere with each other, and it is easier to form large-scale mining.

[0075] The above merely illustrates the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits, characterized in that, It comprises the following steps: Step 1, arrangement of stope structure; according to the occurrence characteristics of the deposit, the sublevel is divided along the ore body tendency, the panel is divided along the ore body strike in the sublevel, and the block is divided in the panel, if the thickness of the ore body exceeds the limit mining height of the mining equipment, the sublevel is divided in the block; Step 2, planning of mining and cutting engineering; the mining and cutting engineering comprises sublevel connecting roadway, panel belt conveyor roadway, panel auxiliary transportation roadway, sublevel return airway, rock drilling transportation roadway and panel chute; Step 3, development of stoping sequence; the stoping sequence mainly comprises sublevel interlayer stoping sequence and panel interblock stoping sequence; Step 4, block stoping; the block stoping comprises microwave irradiation, mechanical cutting and rock breaking and ore drawing; the step 1 further comprises the following steps: Step 11, the inclined length of the sublevel is 80-120m, and 15-20m wide top and bottom pillars are left between the sublevels; Step 12, the panel length is determined according to the reasonable transport distance of the panel continuous conveying equipment, the panel length is 400-600m, and 15m panel interblock pillars are left between the panels; Step 13, the pseudo-inclined block is arranged in the panel at a certain angle along the ore body strike, the pseudo-inclined angle is ensured to be not more than the climbing ability of the mining equipment, the block width is determined according to the stability of the surrounding rock, the block width is 15-20m, and the block height is the thickness of the ore body, when the thickness of the ore body is greater than the maximum mining height of the mining equipment, the sublevel is further divided, and the sublevel height is 4-6m; The sublevel interlayer stoping sequence comprises: when the medium-thick ore body is mined, the sublevel interlayer stoping sequence is adopted when there are multiple sublevels in one sublevel, the sublevel interlayer stoping sequence is adopted, and the sublevel interlayer stoping sequence is adopted.

2. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits according to claim 1, characterized in that, The step 2 further comprises the following steps: Step 21, the sublevel connecting roadway is divided into two kinds of intravascular sublevel connecting roadway and extravascular sublevel connecting roadway, wherein the extravascular sublevel connecting roadway is arranged in the two wings of the ore body, and is used as the channel for transferring the mechanical equipment between the layers of the adjacent sublevels; the intravascular sublevel connecting roadway is arranged in the top and bottom pillars of the sublevel, and is used as the transportation roadway and ventilation roadway for the personnel, materials and ore between the layers of the sublevel; Step 22, the panel belt conveyor roadway and the panel auxiliary transportation roadway are arranged in the top and bottom pillars of the sublevel along the ore body strike, the distance between the two is 8-10m, and the panel belt conveyor roadway and the panel auxiliary transportation roadway of the adjacent sublevels are shared; Step 23, the sublevel return airway is arranged in the other side top and bottom pillar of the panel along the ore body strike; Step 24, the rock drilling transportation roadway is arranged on the central axis of the block, and connects the panel belt conveyor roadway and the return airway; Step 25, when the thickness of the ore body exceeds the maximum mining height of the mining equipment, and the upper sublevel ore body is mined, the panel chute is arranged in the top and bottom pillar of the sublevel at one end of the panel belt conveyor roadway, so that the ore of the upper sublevel is drawn to the belt conveyor of the intravascular sublevel connecting roadway.

3. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits according to claim 1, characterized in that, The panel interblock stoping sequence comprises: unidirectional stoping from the air inlet side to the air return side along the ore body strike, and one-step mining room and two-step mining pillar are adopted between the blocks, that is, the first step mining room is mined, and then the two-step mining pillar is mined, after the block of the whole panel is mined, the top and bottom pillars of the sublevel are finally mined.

4. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits according to claim 1, characterized in that, The ore block mining specifically comprises: fully drawing the bottom along the short axis of the ore block at the return air side end of the drilling and transportation roadway, and two mining devices are respectively arranged at the two sides of the drilling and transportation roadway to cooperatively retreat mining towards the air inlet end, so that the mining device has two or more free surfaces during mining, and the mining efficiency is improved.

5. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits according to claim 1, characterized in that, The microwave irradiation, mechanical cutting and rock breaking, and ore falling specifically comprise: irradiating the hard rock on the mining surface with a microwave to make the hard rock crack due to high temperature, and then the mining device mines the irradiated hard rock.

6. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified ore deposits according to claim 1, characterized in that, The mining device is a boom-type roadheader, and is not limited to the type of pick and the way of tunneling.

7. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits according to any of claims 1-6, characterized in that, The method further comprises a step 5 of ore transportation, and the ore transportation comprises in-situ cutting, in-situ transportation, panel ore transportation, and intermediate ore transportation, wherein the cut ore is transferred to a rehandler behind the device by a loading mechanism of the roadheader, and then is transported out of the stope by a scraper conveyor arranged in the drilling and transportation roadway; the panel ore is transferred to a belt conveyor in the panel by the scraper conveyor, and then is transported to a belt conveyor in the intermediate connecting roadway by the belt conveyor, so that continuous and stable transportation of the whole process of the stope, the panel, and the intermediate is realized. A step 6 of stope ventilation is further included, and the stope ventilation specifically comprises: the drilling and transportation roadway is used as the ventilation air inlet roadway of the whole stope; the fresh air flow path is the panel connecting roadway→the panel main transportation roadway→the drilling and transportation roadway→the mining surface; the contaminated air flow path is the mining surface→the intermediate return air roadway, and the temperature of the mining surface is ensured to be below 26 DEG C by ventilation.

8. A method of mechanical rock fragmentation and continuous mining of gently inclined stratified deposits according to claim 7, characterized in that, The method further comprises a step 7 of filling, and the filling specifically comprises: after the stope is completely mined, a full-tail sand cemented filling body is used for filling, the filling height is the layering height, the filling height is 4-6 m, the lower 4 m is filled by using a low-strength filling ratio, and the upper 1-2 m is filled by using a high-strength filling ratio. A step 8 of pillar recovery is further included, and the pillar recovery refers to that after the ore bodies arranged at the two sides of the panel main transportation roadway in the intermediate top and bottom pillars are completely mined and filled, the transportation roadway in the pillar is used as a cutting roadway for retreat mining.

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